Boiler smoke heat energy recycling system
A technology of boiler flue gas and waste heat recovery system, which can be used in preheating, liquid degassing, feed water heaters, etc., and can solve problems such as environmental pollution and waste.
Inactive Publication Date: 2018-04-20
CHINA TOBACCO HENAN IND
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Problems solved by technology
[0002] Most of the boilers installed in cigarette factories are gas-fired fire-tube boilers. The main component of natural gas is methane. After the natural gas is burned in the boiler to heat hot water to generate steam, the main components of the natural gas combustion product, namely flue gas, are water vapor, carbon dioxide and a small amount of sulfide, etc. , the generated flue gas still contains a large amount of heat energy and is discharged from the flue to the outside, causing great waste and polluting the environment
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[0022] figure 1 The direction of the arrow on each pipe in the middle indicates the direction of water flow in the corresponding pipe.
[0023] Such as figure 1 As shown, a boiler flue gas thermal energy recycling system of the present invention includes a water softening station 1, an intermediate water tank 35, a deaerator 41 and a boiler 25, and the softened water produced by the water softening station 1 is transported to the deaerator 41 through the intermediate water tank 35 The deoxidized water is heated and deoxidized, and the demineralized water flows out from the deaerator 41 and enters the boiler 25.
[0024] The softened water produced by the water softening station 1 flows through the water tank inlet pipe 6 to the right water inlet of the middle water tank, and the right water outlet of the middle water tank is connected to the inlet of the deaerator through the water tank outlet pipe 40 .
[0025] The water inlet pipeline of the water tank is equipped with a w...
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The invention discloses a boiler smoke heat energy recycling system. The boiler smoke heat energy recycling system comprises a soft water station, a middle water tank, a deaerator and a boiler; a first-grade energy saver and a second-grade energy saver are arranged on a flue of the boiler in sequence; the first-grade energy saver comprises a first-grade heat exchanger accessed into the flue; the second-grade energy saver comprises a second-grade heat exchanger accessed into the flue; a second-grade afterheat recovery system is arranged between the middle water tank and the second-grade energysaver; the second-grade afterheat recovery system comprises a second-grade heat exchange water inlet pipe connected with a left water outlet of the middle water tank and an inlet of the second-grade heat exchanger, and a second-grade heat exchange water outlet pipe connected with an outlet of the second-grade heat exchanger and a left water inlet of the middle water tank; a first-grade afterheat recovery system is arranged among the deaerator, the first-grade energy saver and the boiler; and the first-grade afterheat recovery system comprises a first-grade heat exchange water inlet pipe connected with the deaerator and an inlet of the first-grade heat exchanger, and a first-grade heat exchange water outlet pipe connected with an outlet of the first-grade heat exchanger and a water inlet ofthe boiler. The boiler smoke heat energy recycling system fully uses smoke afterheat, and reduces resource wastes.
Description
technical field [0001] The invention belongs to the technical field of industrial water supply, and in particular relates to a boiler flue gas thermal energy recycling system. Background technique [0002] Most of the boilers installed in cigarette factories are gas-fired fire-tube boilers. The main component of natural gas is methane. After the natural gas is burned in the boiler to heat hot water to generate steam, the main components of the natural gas combustion product, namely flue gas, are water vapor, carbon dioxide and a small amount of sulfide, etc. , the generated flue gas still contains a large amount of heat energy and is discharged from the flue to the outside, causing great waste and polluting the environment. Contents of the invention [0003] The object of the present invention is to provide a boiler flue gas thermal energy recycling system, which can fully utilize the waste heat of the flue gas and reduce the waste of resources. [0004] In order to solve...
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IPC IPC(8): F22D1/50
CPCF22D1/50
Inventor 王正伟孙中超孙琳褚东发宋志刚李小福王虎一曹利红梁白月
Owner CHINA TOBACCO HENAN IND